[evdubs]

> What’s an example of a unionized vs non unionized group producing the same thing where unionized is better?

Here's a layup: art. Remember the writer's union strike in 2007-2008? All of the shows whose writers were on strike that still went on were terrible.

Edit: also, the purpose of a union is not to "produce something better". The purpose of a union is to protect workers' rights. They generally serve their purpose very well.